1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fomenos
3 years ago
10

What is the percent composition by mass of oxygen in

Chemistry
1 answer:
KiRa [710]3 years ago
4 0

What is the percent composition by mass of oxygen in magnesium oxide, MgO?

Answer: 39.7 percent

You might be interested in
What process would farmers use to produce vegetables that will grow in a specific climate?
netineya [11]
They would make sure it gets lots of water and it needs sunlight to so some kind of source that could replace the sun
4 0
3 years ago
What pressure will be exerted by 26g if CO2 at a temperature of 35C and a volume of 550ml?
STALIN [3.7K]

Answer:

P = 28.5 atm

Explanation:

PV = nRT => P = nRT/V

P = Pressure = ?

n = moles of sample = mass/molar mass = 26g/44g·mol⁻¹ = 0.619 mole CO₂

R = gas constant = 0.08206 L·atm/mol·K

T = temperature in Kelvin = (35 + 273)K = 308K

V = volume in Liters = 550 ml = 0.550 L

Pressure (P) = nRT/V

= (0.619 mole)(0.08206 L·atm/mol·K)(308K)/(0.550 L) = 28.5 atm

3 0
3 years ago
Which pair of elements do you expect to be most similar in their chemical properties?
Dmitry [639]
Isotopes of carbon or any element
7 0
3 years ago
What is a chemical bond?
hodyreva [135]
A chemical bond is <span> lasting attraction between atoms that enables the formation of </span>chemical <span>compounds. </span>
8 0
3 years ago
Read 2 more answers
Which of these are formed when
makvit [3.9K]
Option d lo siento si es incorrecto
7 0
3 years ago
Other questions:
  • What did Dalton determine about the relationship between atoms, elements, and compounds?
    14·2 answers
  • How many atoms are in 1.50 moles of fluorine gas?
    15·2 answers
  • The first stable compound produced from co2 in the light-independent reaction is
    9·1 answer
  • The most common form of nylon is 63.68% carbon, 9.80% hydrogen, 12.38% nitrogen and 14.14 % oxygen. Calculate the empirical form
    13·1 answer
  • Why is the atomic radius of sodium much smaller than the atomic radius of potassium
    11·1 answer
  • What is the pH of a solution with (H+) = .01 M? Show your work.​
    12·1 answer
  • When the boat is placed on the scale, how does its weight compare to the weight of the water it displaced?
    12·2 answers
  • The solubility of sugar in water is about 5g/ml. This means tha
    9·1 answer
  • On the 14 point pH scale, soaps and cleaning solutions are typically -
    6·2 answers
  • How many molecules of SF6<br> are in 25.0 g SF6?<br><br> [ ? ]×10⁰²] molecules SF6
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!